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Methods to Determine the Deformation of the IRVE Hypersonic Inflatable Aerodynamic DeceleratorSmall resonant targets used in conjunction with a microwave reflectometer to determine the deformation of the Hypersonic Inflatable Aerodynamic Decelerator (HIAD) during reentry are investigated. The reflectometer measures the distance to the targets and from this the HIAD deformation is determined. The HIAD is used by the Inflatable Reentry Vehicle Experiment (IRVE) which investigates the use of inflatable heat shields for atmospheric reentry. After several different microwave reflectometer systems were analyzed and compared it was determined that the most desirable for this application is the Frequency Doubling Target method.
Document ID
20110013243
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Young, William R. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 25, 2013
Publication Date
July 1, 2011
Subject Category
Instrumentation And Photography
Report/Patent Number
L-20040
NF1676L-13035
NASA/TM-2011-217162
Report Number: L-20040
Report Number: NF1676L-13035
Report Number: NASA/TM-2011-217162
Funding Number(s)
WBS: WBS 737071.01.03.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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